Excavating and loading apparatus.



UNITED STATES PATENT OFFICE.

111A E. BURKETT, 0F Macon,

GEORGIA.

EXCAVATING AND LOADING APPARATUS.

To al?. whom 'it muy concern:

Be it known that I, lua E. lltuunri. a citizen of the United Statesl` residing at Maooinin the County of' Bibli ard State of vGeorgia, have invented Certain new and neetul Improvements in Excavating and Loading` Apparatus, of which 'the following is a. specification. i

M v invention relates toV excavating' and loading apparatus in'u'hieli asoraper or scoop, operated by a power driven drlu'n through draitrables. Controlled for hauling the material direetl;T troni the. exeava scoop.

The object oit the invention is to improve 'the .construction and increase the etleieiu.;v

and convenience of operation of apparatus of the above noted character. and especially to'provide improved means the duuii'ung of the seraper or Causing it to for eontrolling dump in the saine position and easily returning it for reloading; also to adapt the apparatus for excavations ot large areas Without requiring reinoval from place to place.

An apparatus yembodying inv invention illustrated in the aceoinpanvinfr drawings,

i which forni a part of this` spec:itieation.A

Figure 1. is a side elevation showing; the scraper on the forward haul. and indicating the dumping operation bv dotted lines. Fig. 2 is a top plan vieu. Fie. 3 is a detail perspective of the scrape-r. Fig. t is an en largecdetail sectional view ot the louer lend ot the upper swivel pulley bleek.

The soraper 1 is operated bv power through tore and aft draft-cables or the `forward hauling;cable 2 and the backing' line. The forward hauling cableV 2 is preferably connected toV lugs ..attaohed to and 'projecting bevond the Want-sides not the sci.'apei','and Coneequently tends to raise the iiointand. prevent aeeidental tripping 'or overturning' ot the scraper so that- Ythe. full hauling power `be always idilized. A, transverse rod 5 'is attached at the haelt of the scraper andpro- Specification of Letters Patent.

of the apparatus may Patented Aue. 22, 1911.

Application filed November 25, 1910. KSerial No. 594.194.

-jeets beyond the sides of' the same, provid` in; lateral arms or trunnioii-lilto extensions (i. the tunetion ot which will. be hereinafter explained. Suitable handles are or inaiY be prm'idel to enable the attendantto l1na inpulate the seraper at'ter loading,y or filling.' The scraper is'hauled back and lforth, for Vfilling antidumping by the cables operated from"power-driven drums T and 8. Said Cables run over elevated upulleys 9 and 10, and the backingr line uhioh is Carried over other suspended pulleys 11 is )')assed'-arom1d adjustable or swivel pulleys 12 and 13 at.- taviied to the tailpost 14 at or near the rear end 0i the area. being excavated.

For loading the material removed from the excavation i into Cars or dumping it upon etnbankments, the drafteables run over the aforesaid elevated pulleX-*s El'and '10, which are mounted lin an Aderriek 15 or other suitable frame. or scaffolding; and on the side of the derriok toward the place of excavation is constructed an ine-line 16 with lateral guides' 17 from the upper end ot which extend skids 18, made preterabl;T mvntinuations of the guides 17.' Said skids 1S are also preferably inclined. though in a less degree than the incline 1G. elined platform' 16 and skids 1S areerected upon suitable framework or upriglits 19, and the skids 1S may terminate with and lia-ve `their extrei'nities attached to and sup-- ported by the derriok 15. At and 'just be- Ivond theY upper end tween the skids. is a roller 20 over which the scraper passes in the. act ot dun'ipinpf.

The ear 21, or other conveyance into which the material removed from the excavation is to be loaded., may pass under the skids 1S on a. suitable 4track 22 as 'shown and the operation of excavating,lr and .1oading into the ear tvill'be performed as follows: TheV drum 'l'` being operated for Winding up the forward haulingr Cable Q, While the drum S is released for letting outthe backing' line 3., the scraper on the forward haul fills itself. or is manipulated for filling' by the attendant-and is Carried -onward and hauled up the incline 1G anderer the roller 20 untiltlie weight of the scraper and its contents bevond the roller over-bal? ances the. 'Weight behind, whereupon the scraper will tilt its contents into the ear or other receptacle, the tilting movement bringinpT the arms or trunnions 6 down upon Ithe skids 1S. Said The in f of the incline, and bedownward and discharge y ing outof proper "position,

-ation goes on.

arms or trunnions G, by resting upon the 'u skids 18, catch and hold the scraper in the act of dumping, retaining it in suchposition that when its contents have been discharged it may be hauled back easily over the roller 20 and down the incline 16 for returning'it to the place ofexcavation; the power drums 7 and 8 being reversed for pulling on the backing line 3. S0 the oper- Thus the dumping of the scraper and restoring it to position for the backward haul is wholly automatic, and there is no possibility of thescraper fall- Furthermore, as the dumping is effected by Vthe scraper tilting'or swinging downwardly and dropping its own load,no power is required for the dumping operation, wherein my inven-I- tion has a great advantage over otherexcavating and loading apparatus in which the dumping is generally 'accomplished by lifting and overturning the scraper by lever age or by tripping the point of the scraper, requiring tremendous power 'and frequently result-mg in the dropping or dislocation of the scraper and annoying and costly dela-ys. The only power required is to haul the scraper to the dumping posit-ion, and, when it has dischargedits load and been relieved ofthe weight-thereof, to pull it back 'over the roller. `Nor is there any chancevof the scraper running backwardv before `or after discharging, unless pulled back by the engine, for whenv the forward haul is carried totheproper point, the overbalancing` of the forward part of the scraper immediately causes it to tilt downward and dump, and even if the pull of the forward hauling cable is released prematurely the scraper sliding on its own bottom willfnot descend the ineline. l

For excavating over large areas, the in'- cline 16 is preferably made wider at the bottoni, the guides 17: converging toward the upperend of the incline, and the backing line 3 is carried outof the way by the suspended pulleys 11 as already noted, said pulleys 11 being conveniently suspended from a stationary tight cable 23; and the pulleys 12 and 13V on the tail-,post 14`are carried bypivoted pulley-blocks or swivel brackets 24 which/ automatically adjust Athemselves at any anglerelati-ve to one another, as required by the deflection of the backing line when excavating at either side of and atdiferent distances from the tailaround a` guide pulle4 raper` to any ivel bracketsV or pivoted p'ulleydilocks 24 are or maybe i journaledy in eye-boltsattached to the tailpost, and the adjacent ends of said swivel brackets arecore'fd `out axially to provide guides for th'epassageof the cable 3 therevthrough. 'By this construction the relative adjustment of .the pulleys 12 and 1 3 at any angle does not* interfere with the proper and easy running of the cable. Tith the apparatus thus arranged, excavations covering an a-rea of an acre or more have been" carried on without requiring any removal or adjustment of the apparatus, exceptA is intended to extend to the use of manual power' as Well as .an englne or motor for operating the draft-cables,

I claim and'desire to secure by Letters Pat-ent:

1. Anexcavating and loading apparatus comprising a frame having an upwardly inclined platform, a derrick arranged kadjacent and spaced from said frame, a pulley on said derrick, a scraperj a` cable secured to the scraper and passing. over said pulley to draw the scraper up the platform, skids extending from'the upper end of the platform at the sides of the same to the derrick at a less inclination than the frame., and a cross-bar secured across the rear en'd of the scraper 'and projecting'L beyond the sides of the same and adapted to impinge upon the skids wh cn the scraper is dumped to support the scraper in a dumping position.

2. -An excavating and loading apparatus coin'prisinga frame havingfan upwardly inclined platform, a derrick arranged adjacent and spaced from said frame, a pullev on said derrick, a scraper, a cable secured to the scraper and passing over said pulley to draw the scraper up the platform, skids extending from t-he upper end of the platform at the sides of the same to the derrick at a less yinclination than the platform, a transverse roller mounted in a-nd eXtending'bet-ween the skids immediately adjacent theupper end of the platform over which the scraper swings when dumping or returning to the plat-form, and a cross bar vsecured across the rear end of the scraper and projecting beyond the sides of the same and adapted to impinge uponthe skids beyond the roller scraper in a dumping position.

3. An excavating and loading apparatus comprising posts spaced apart, a supporting cable secured to and extending between said` when the scraper is dumped, to support the from, skids extending between the upper end of the )latform and said posti, power mechanisul' rispofsed adjacent said post, a scraper adapted to4 travel over the platform and dump between the skids, pulleys on the post,

l 'a' 4hauling cable secured to the ont cud of the scaperand passing to the power' mechanism over the pulley on the postadjacent the p'latfmn'I-,xand a backing 4able secured' tol the reanend of the scraper and passing 'fxfomhe power mechanism over pulleys on bothpo'stsand suspended from the supper@ in'g cable` l 4. In an apparatus for excavating and loading or other purposes, the conlbl'laliion with al [mwenoperated scrapelj nr scoop haw@ ing a forward hauling cable and a hacking cable, of self-adjusting pulleys ar'olunl which the'backing cable passes, said pulleys ha ving plvoted pulley-blocks 01 swivel ln'aclcclja, the adjacent ends of which are col'cfl' cui' axially to provide guides" .for the passage of. lille Ca ble thereth rou gli.

In testimony whereof l alllx my signature, in presence of two Witl'xesses.

IRA E. BUR ETT. Witnesses DONALD ll. S'LEWAR'P, Oscoop l-lf. DnwELL. 

